42796690 has 8 divisors (see below), whose sum is σ = 77034060. Its totient is φ = 17118672.

The previous prime is 42796687. The next prime is 42796693. The reversal of 42796690 is 9669724.

It is an interprime number because it is at equal distance from previous prime (42796687) and next prime (42796693).

It can be written as a sum of positive squares in 2 ways, for example, as 40998409 + 1798281 = 6403^2 + 1341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42796690² = 3663113349912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42796693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139825 + ... + 2139844.

Almost surely, 2^42796690 is an apocalyptic number.

42796690 is a deficient number, since it is larger than the sum of its proper divisors (34237370).

42796690 is a wasteful number, since it uses less digits than its factorization.

42796690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279676.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 42796690 is about 6541.9179144957. The cubic root of 42796690 is about 349.7867816994.

The spelling of 42796690 in words is "forty-two million, seven hundred ninety-six thousand, six hundred ninety".