1457740138 has 8 divisors (see below), whose sum is σ = 2281680288. Its totient is φ = 697180044.

The previous prime is 1457740103. The next prime is 1457740169. The reversal of 1457740138 is 8310477541.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1457740138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15844956 + ... + 15845047.

It is an arithmetic number, because the mean of its divisors is an integer number (285210036).

Almost surely, 2^1457740138 is an apocalyptic number.

1457740138 is a deficient number, since it is larger than the sum of its proper divisors (823940150).

1457740138 is a wasteful number, since it uses less digits than its factorization.

1457740138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31690028.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1457740138 is about 38180.3632512840. The cubic root of 1457740138 is about 1133.8615734944.

The spelling of 1457740138 in words is "one billion, four hundred fifty-seven million, seven hundred forty thousand, one hundred thirty-eight".