40157400 has 192 divisors, whose sum is σ = 137134080. Its totient is φ = 9676800.

The previous prime is 40157389. The next prime is 40157407. The reversal of 40157400 is 475104.

It is a super-2 number, since 2×40157400² = 3225233549520000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40157407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 316137 + ... + 316263.

It is an arithmetic number, because the mean of its divisors is an integer number (714240).

Almost surely, 2^40157400 is an apocalyptic number.

40157400 is a gapful number since it is divisible by the number (40) 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 40157400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68567040).

40157400 is an abundant number, since it is smaller than the sum of its proper divisors (96976680).

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

40157400 is a wasteful number, since it uses less digits than its factorization.

40157400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 40157400 is about 6336.9866656006. The cubic root of 40157400 is about 342.4431859160.

The spelling of 40157400 in words is "forty million, one hundred fifty-seven thousand, four hundred".