1370880021 has 8 divisors (see below), whose sum is σ = 2088960064. Its totient is φ = 783360000.

The previous prime is 1370880019. The next prime is 1370880103. The reversal of 1370880021 is 1200880731.

It is a happy number.

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

It is not a de Polignac number, because 1370880021 - 2¹ = 1370880019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370880011) 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, 32639980 + ... + 32640021.

It is an arithmetic number, because the mean of its divisors is an integer number (261120008).

Almost surely, 2^1370880021 is an apocalyptic number.

It is an amenable number.

1370880021 is a deficient number, since it is larger than the sum of its proper divisors (718080043).

1370880021 is an equidigital number, since it uses as much as digits as its factorization.

1370880021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65280011.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1370880021 is about 37025.3969728888. The cubic root of 1370880021 is about 1110.8782976322.

The spelling of 1370880021 in words is "one billion, three hundred seventy million, eight hundred eighty thousand, twenty-one".