45257898 has 64 divisors (see below), whose sum is σ = 107163648. Its totient is φ = 12475200.

The previous prime is 45257873. The next prime is 45257903. The reversal of 45257898 is 89875254.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199261 + ... + 199487.

It is an arithmetic number, because the mean of its divisors is an integer number (1674432).

Almost surely, 2^45257898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45257898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53581824).

45257898 is an abundant number, since it is smaller than the sum of its proper divisors (61905750).

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

45257898 is a wasteful number, since it uses less digits than its factorization.

45257898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387.

The product of its digits is 806400, while the sum is 48.

The square root of 45257898 is about 6727.3990516395. The cubic root of 45257898 is about 356.3675295813.

It can be divided in two parts, 452578 and 98, that added together give a triangular number (452676 = T₉₅₁).

The spelling of 45257898 in words is "forty-five million, two hundred fifty-seven thousand, eight hundred ninety-eight".