57433398 has 64 divisors (see below), whose sum is σ = 133297920. Its totient is φ = 16329600.

The previous prime is 57433381. The next prime is 57433399. The reversal of 57433398 is 89333475.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57433399) 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, 70413 + ... + 71223.

It is an arithmetic number, because the mean of its divisors is an integer number (2082780).

Almost surely, 2^57433398 is an apocalyptic number.

57433398 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57433398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66648960).

57433398 is an abundant number, since it is smaller than the sum of its proper divisors (75864522).

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

57433398 is a wasteful number, since it uses less digits than its factorization.

57433398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893.

The product of its digits is 272160, while the sum is 42.

The square root of 57433398 is about 7578.4825657911. The cubic root of 57433398 is about 385.8230506128.

The spelling of 57433398 in words is "fifty-seven million, four hundred thirty-three thousand, three hundred ninety-eight".