345137478 has 24 divisors (see below), whose sum is σ = 802973592. Its totient is φ = 98610624.

The previous prime is 345137459. The next prime is 345137483. The reversal of 345137478 is 874731543.

345137478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×345137478³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586675 + ... + 587262.

It is an arithmetic number, because the mean of its divisors is an integer number (33457233).

Almost surely, 2^345137478 is an apocalyptic number.

345137478 is an abundant number, since it is smaller than the sum of its proper divisors (457836114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345137478 is a wasteful number, since it uses less digits than its factorization.

345137478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173956 (or 1173949 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 345137478 is about 18577.8760357582. The cubic root of 345137478 is about 701.4510566377.

The spelling of 345137478 in words is "three hundred forty-five million, one hundred thirty-seven thousand, four hundred seventy-eight".