40369392 has 120 divisors (see below), whose sum is σ = 133667040. Its totient is φ = 11128320.

The previous prime is 40369367. The next prime is 40369423. The reversal of 40369392 is 29396304.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28542 + ... + 29922.

It is an arithmetic number, because the mean of its divisors is an integer number (1113892).

Almost surely, 2^40369392 is an apocalyptic number.

40369392 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40369392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66833520).

40369392 is an abundant number, since it is smaller than the sum of its proper divisors (93297648).

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

40369392 is a wasteful number, since it uses less digits than its factorization.

40369392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 40369392 is about 6353.6912106271. The cubic root of 40369392 is about 343.0447175986.

The spelling of 40369392 in words is "forty million, three hundred sixty-nine thousand, three hundred ninety-two".