40201557 has 16 divisors (see below), whose sum is σ = 58605120. Its totient is φ = 24310400.

The previous prime is 40201537. The next prime is 40201559. The reversal of 40201557 is 75510204.

It is a cyclic number.

It is not a de Polignac number, because 40201557 - 2⁷ = 40201429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40201559) 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, 17707 + ... + 19847.

It is an arithmetic number, because the mean of its divisors is an integer number (3662820).

Almost surely, 2^40201557 is an apocalyptic number.

It is an amenable number.

40201557 is a deficient number, since it is larger than the sum of its proper divisors (18403563).

40201557 is a wasteful number, since it uses less digits than its factorization.

40201557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 40201557 is about 6340.4697775480. The cubic root of 40201557 is about 342.5686565616.

The spelling of 40201557 in words is "forty million, two hundred one thousand, five hundred fifty-seven".