45403072 has 112 divisors (see below), whose sum is σ = 109325664. Its totient is φ = 18585600.

The previous prime is 45403051. The next prime is 45403087. The reversal of 45403072 is 27030454.

It is a super-2 number, since 2×45403072² = 4122877894074368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1107372 + ... + 1107412.

It is an arithmetic number, because the mean of its divisors is an integer number (976122).

Almost surely, 2^45403072 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 45403072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54662832).

45403072 is an abundant number, since it is smaller than the sum of its proper divisors (63922592).

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

45403072 is a wasteful number, since it uses less digits than its factorization.

45403072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 45403072 is about 6738.1801697491. The cubic root of 45403072 is about 356.7481635568.

The spelling of 45403072 in words is "forty-five million, four hundred three thousand, seventy-two".