371421309 has 16 divisors (see below), whose sum is σ = 566386688. Its totient is φ = 212086512.

The previous prime is 371421277. The next prime is 371421311. The reversal of 371421309 is 903124173.

It is not a de Polignac number, because 371421309 - 2⁵ = 371421277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (371421209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27264 + ... + 38550.

It is an arithmetic number, because the mean of its divisors is an integer number (35399168).

Almost surely, 2^371421309 is an apocalyptic number.

It is an amenable number.

371421309 is a deficient number, since it is larger than the sum of its proper divisors (194965379).

371421309 is a wasteful number, since it uses less digits than its factorization.

371421309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12864.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 371421309 is about 19272.2938178101. The cubic root of 371421309 is about 718.8235088120.

The spelling of 371421309 in words is "three hundred seventy-one million, four hundred twenty-one thousand, three hundred nine".