74295390 has 64 divisors (see below), whose sum is σ = 198676800. Its totient is φ = 17654784.

The previous prime is 74295341. The next prime is 74295407. The reversal of 74295390 is 9359247.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8026 + ... + 14594.

It is an arithmetic number, because the mean of its divisors is an integer number (3104325).

Almost surely, 2^74295390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74295390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99338400).

74295390 is an abundant number, since it is smaller than the sum of its proper divisors (124381410).

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

74295390 is a wasteful number, since it uses less digits than its factorization.

74295390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6621.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 74295390 is about 8619.4773623463. The cubic root of 74295390 is about 420.3915283239.

The spelling of 74295390 in words is "seventy-four million, two hundred ninety-five thousand, three hundred ninety".