425529072 has 160 divisors (see below), whose sum is σ = 1289203200. Its totient is φ = 134120448.

The previous prime is 425529067. The next prime is 425529077. The reversal of 425529072 is 270925524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (425529067) and next prime (425529077).

It is a super-2 number, since 2×425529072² = 362149982234362368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425529077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1122579 + ... + 1122957.

It is an arithmetic number, because the mean of its divisors is an integer number (8057520).

Almost surely, 2^425529072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425529072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644601600).

425529072 is an abundant number, since it is smaller than the sum of its proper divisors (863674128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425529072 is a wasteful number, since it uses less digits than its factorization.

425529072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 425529072 is about 20628.3560178702. The cubic root of 425529072 is about 752.1591541064.

The spelling of 425529072 in words is "four hundred twenty-five million, five hundred twenty-nine thousand, seventy-two".