427503408 has 80 divisors (see below), whose sum is σ = 1122115680. Its totient is φ = 140234752.

The previous prime is 427503379. The next prime is 427503409. The reversal of 427503408 is 804305724.

It is a super-2 number, since 2×427503408² = 365518327703228928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427503409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1458910 + ... + 1459202.

It is an arithmetic number, because the mean of its divisors is an integer number (14026446).

Almost surely, 2^427503408 is an apocalyptic number.

427503408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427503408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561057840).

427503408 is an abundant number, since it is smaller than the sum of its proper divisors (694612272).

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

427503408 is a wasteful number, since it uses less digits than its factorization.

427503408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 427503408 is about 20676.1555420731. The cubic root of 427503408 is about 753.3206290876.

The spelling of 427503408 in words is "four hundred twenty-seven million, five hundred three thousand, four hundred eight".