1397454078 has 8 divisors (see below), whose sum is σ = 2794908168. Its totient is φ = 465818024.

The previous prime is 1397454067. The next prime is 1397454083. The reversal of 1397454078 is 8704547931.

It is a happy number.

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

1397454078 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116454501 + ... + 116454512.

It is an arithmetic number, because the mean of its divisors is an integer number (349363521).

Almost surely, 2^1397454078 is an apocalyptic number.

1397454078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1397454078 is a wasteful number, since it uses less digits than its factorization.

1397454078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232909018.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 1397454078 is about 37382.5370728098. The cubic root of 1397454078 is about 1118.0104128028.

The spelling of 1397454078 in words is "one billion, three hundred ninety-seven million, four hundred fifty-four thousand, seventy-eight".