42015757 has 16 divisors (see below), whose sum is σ = 50916352. Its totient is φ = 33903360.

The previous prime is 42015749. The next prime is 42015781. The reversal of 42015757 is 75751024.

It is a cyclic number.

It is not a de Polignac number, because 42015757 - 2³ = 42015749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42015737) 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, 5413 + ... + 10645.

It is an arithmetic number, because the mean of its divisors is an integer number (3182272).

Almost surely, 2^42015757 is an apocalyptic number.

It is an amenable number.

42015757 is a deficient number, since it is larger than the sum of its proper divisors (8900595).

42015757 is a wasteful number, since it uses less digits than its factorization.

42015757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 42015757 is about 6481.9562633514. The cubic root of 42015757 is about 347.6461286980.

The spelling of 42015757 in words is "forty-two million, fifteen thousand, seven hundred fifty-seven".