42694515 has 12 divisors (see below), whose sum is σ = 74003904. Its totient is φ = 22770384.

The previous prime is 42694513. The next prime is 42694517. The reversal of 42694515 is 51549624.

It is an interprime number because it is at equal distance from previous prime (42694513) and next prime (42694517).

It is not a de Polignac number, because 42694515 - 2¹ = 42694513 is a prime.

It is a super-2 number, since 2×42694515² = 3645643222170450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42694515.

It is not an unprimeable number, because it can be changed into a prime (42694513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474339 + ... + 474428.

It is an arithmetic number, because the mean of its divisors is an integer number (6166992).

Almost surely, 2^42694515 is an apocalyptic number.

42694515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42694515 is a deficient number, since it is larger than the sum of its proper divisors (31309389).

42694515 is a wasteful number, since it uses less digits than its factorization.

42694515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948778 (or 948775 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 42694515 is about 6534.1039936628. The cubic root of 42694515 is about 349.5081936102.

The spelling of 42694515 in words is "forty-two million, six hundred ninety-four thousand, five hundred fifteen".