39149390 has 16 divisors (see below), whose sum is σ = 80536032. Its totient is φ = 13422624.

The previous prime is 39149387. The next prime is 39149399. The reversal of 39149390 is 9394193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39149399) 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, 279569 + ... + 279708.

It is an arithmetic number, because the mean of its divisors is an integer number (5033502).

Almost surely, 2^39149390 is an apocalyptic number.

39149390 is an abundant number, since it is smaller than the sum of its proper divisors (41386642).

39149390 is a wasteful number, since it uses less digits than its factorization.

39149390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559291.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 39149390 is about 6256.9473387587. The cubic root of 39149390 is about 339.5535952312.

The spelling of 39149390 in words is "thirty-nine million, one hundred forty-nine thousand, three hundred ninety".