345127988 has 24 divisors (see below), whose sum is σ = 615730752. Its totient is φ = 169228224.

The previous prime is 345127987. The next prime is 345128039. The reversal of 345127988 is 889721543.

It is a happy number.

It is a super-2 number, since 2×345127988² = 238226656201856288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345127987) 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, 59681 + ... + 65207.

It is an arithmetic number, because the mean of its divisors is an integer number (25655448).

Almost surely, 2^345127988 is an apocalyptic number.

It is an amenable number.

345127988 is a deficient number, since it is larger than the sum of its proper divisors (270602764).

345127988 is a wasteful number, since it uses less digits than its factorization.

345127988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831 (or 5829 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 345127988 is about 18577.6206226739. The cubic root of 345127988 is about 701.4446274784. Note that the first 3 decimals are identical.

The spelling of 345127988 in words is "three hundred forty-five million, one hundred twenty-seven thousand, nine hundred eighty-eight".