49692690 has 80 divisors (see below), whose sum is σ = 137998080. Its totient is φ = 12817440.

The previous prime is 49692611. The next prime is 49692703. The reversal of 49692690 is 9629694.

It is a super-2 number, since 2×49692690² = 4938726878872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24121 + ... + 26099.

It is an arithmetic number, because the mean of its divisors is an integer number (1724976).

Almost surely, 2^49692690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49692690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68999040).

49692690 is an abundant number, since it is smaller than the sum of its proper divisors (88305390).

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

49692690 is a wasteful number, since it uses less digits than its factorization.

49692690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 49692690 is about 7049.3042209852. The cubic root of 49692690 is about 367.6468384476.

The spelling of 49692690 in words is "forty-nine million, six hundred ninety-two thousand, six hundred ninety".