375755421 has 8 divisors (see below), whose sum is σ = 501629760. Its totient is φ = 250192352.

The previous prime is 375755411. The next prime is 375755423. The reversal of 375755421 is 124557573.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 375755421 - 2⁷ = 375755293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 375755421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (375755423) 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, 74985 + ... + 79838.

It is an arithmetic number, because the mean of its divisors is an integer number (62703720).

Almost surely, 2^375755421 is an apocalyptic number.

It is an amenable number.

375755421 is a deficient number, since it is larger than the sum of its proper divisors (125874339).

375755421 is a wasteful number, since it uses less digits than its factorization.

375755421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155635.

The product of its digits is 147000, while the sum is 39.

The square root of 375755421 is about 19384.4118043339. The cubic root of 375755421 is about 721.6086850840.

The spelling of 375755421 in words is "three hundred seventy-five million, seven hundred fifty-five thousand, four hundred twenty-one".