20701480 has 32 divisors (see below), whose sum is σ = 46708200. Its totient is φ = 8257536.

The previous prime is 20701477. The next prime is 20701481. The reversal of 20701480 is 8410702.

It can be written as a sum of positive squares in 4 ways, for example, as 13972644 + 6728836 = 3738^2 + 2594^2 .

It is not an unprimeable number, because it can be changed into a prime (20701481) 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, 26536 + ... + 27304.

Almost surely, 2^20701480 is an apocalyptic number.

20701480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20701480 is an abundant number, since it is smaller than the sum of its proper divisors (26006720).

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

20701480 is a wasteful number, since it uses less digits than its factorization.

20701480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1449 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 20701480 is about 4549.8879107073. The cubic root of 20701480 is about 274.5788816248.

The spelling of 20701480 in words is "twenty million, seven hundred one thousand, four hundred eighty".