42007956 has 24 divisors (see below), whose sum is σ = 98123424. Its totient is φ = 13987680.

The previous prime is 42007951. The next prime is 42007957. The reversal of 42007956 is 65970024.

It is a super-3 number, since 3×42007956³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42007951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20766 + ... + 22698.

It is an arithmetic number, because the mean of its divisors is an integer number (4088476).

Almost surely, 2^42007956 is an apocalyptic number.

It is an amenable number.

42007956 is an abundant number, since it is smaller than the sum of its proper divisors (56115468).

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

42007956 is a wasteful number, since it uses less digits than its factorization.

42007956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751 (or 3749 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 42007956 is about 6481.3544880681. The cubic root of 42007956 is about 347.6246117283.

The spelling of 42007956 in words is "forty-two million, seven thousand, nine hundred fifty-six".