1377642730 has 16 divisors (see below), whose sum is σ = 2587572864. Its totient is φ = 527098000.

The previous prime is 1377642701. The next prime is 1377642731. The reversal of 1377642730 is 372467731.

It is not an unprimeable number, because it can be changed into a prime (1377642731) 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, 2994646 + ... + 2995105.

It is an arithmetic number, because the mean of its divisors is an integer number (161723304).

Almost surely, 2^1377642730 is an apocalyptic number.

1377642730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1377642730 is a deficient number, since it is larger than the sum of its proper divisors (1209930134).

1377642730 is a wasteful number, since it uses less digits than its factorization.

1377642730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989781.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 1377642730 is about 37116.6098936851. The cubic root of 1377642730 is about 1112.7019989220.

The spelling of 1377642730 in words is "one billion, three hundred seventy-seven million, six hundred forty-two thousand, seven hundred thirty".