1378700534 has 8 divisors (see below), whose sum is σ = 2176895640. Its totient is φ = 653068656.

The previous prime is 1378700503. The next prime is 1378700537. The reversal of 1378700534 is 4350078731.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 36281593 = 1378700534 / (1 + 3 + 7 + 8 + 7 + 0 + 0 + 5 + 3 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378700537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18140759 + ... + 18140834.

It is an arithmetic number, because the mean of its divisors is an integer number (272111955).

Almost surely, 2^1378700534 is an apocalyptic number.

1378700534 is a deficient number, since it is larger than the sum of its proper divisors (798195106).

1378700534 is a wasteful number, since it uses less digits than its factorization.

1378700534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36281614.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 1378700534 is about 37130.8568982726. The cubic root of 1378700534 is about 1112.9867170314.

The spelling of 1378700534 in words is "one billion, three hundred seventy-eight million, seven hundred thousand, five hundred thirty-four".