39900294 has 48 divisors (see below), whose sum is σ = 99479328. Its totient is φ = 11321856.

The previous prime is 39900277. The next prime is 39900299. The reversal of 39900294 is 49200993.

It is a super-2 number, since 2×39900294² = 3184066922572872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39900299) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18774 + ... + 20790.

It is an arithmetic number, because the mean of its divisors is an integer number (2072486).

Almost surely, 2^39900294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39900294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49739664).

39900294 is an abundant number, since it is smaller than the sum of its proper divisors (59579034).

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

39900294 is a wasteful number, since it uses less digits than its factorization.

39900294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2186 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 39900294 is about 6316.6679507475. The cubic root of 39900294 is about 341.7107948027.

The spelling of 39900294 in words is "thirty-nine million, nine hundred thousand, two hundred ninety-four".