49864690 has 16 divisors (see below), whose sum is σ = 93659328. Its totient is φ = 19078576.

The previous prime is 49864681. The next prime is 49864699. The reversal of 49864690 is 9646894.

It is an interprime number because it is at equal distance from previous prime (49864681) and next prime (49864699).

It is a super-2 number, since 2×49864690² = 4972974617592200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 49864690.

It is not an unprimeable number, because it can be changed into a prime (49864699) 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, 108172 + ... + 108631.

It is an arithmetic number, because the mean of its divisors is an integer number (5853708).

Almost surely, 2^49864690 is an apocalyptic number.

49864690 is a deficient number, since it is larger than the sum of its proper divisors (43794638).

49864690 is a wasteful number, since it uses less digits than its factorization.

49864690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216833.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 49864690 is about 7061.4934680987. The cubic root of 49864690 is about 368.0705254326.

The spelling of 49864690 in words is "forty-nine million, eight hundred sixty-four thousand, six hundred ninety".