380172621 has 8 divisors (see below), whose sum is σ = 508768384. Its totient is φ = 252512640.

The previous prime is 380172607. The next prime is 380172641. The reversal of 380172621 is 126271083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 380172621 - 2⁷ = 380172493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380172641) 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, 232996 + ... + 234621.

It is an arithmetic number, because the mean of its divisors is an integer number (63596048).

Almost surely, 2^380172621 is an apocalyptic number.

It is an amenable number.

380172621 is a deficient number, since it is larger than the sum of its proper divisors (128595763).

380172621 is a wasteful number, since it uses less digits than its factorization.

380172621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467891.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 380172621 is about 19498.0158221292. The cubic root of 380172621 is about 724.4253050135.

The spelling of 380172621 in words is "three hundred eighty million, one hundred seventy-two thousand, six hundred twenty-one".