2070400280 has 32 divisors (see below), whose sum is σ = 5016740400. Its totient is φ = 764455296.

The previous prime is 2070400279. The next prime is 2070400309. The reversal of 2070400280 is 820040702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990250 + ... + 1991289.

Almost surely, 2^2070400280 is an apocalyptic number.

2070400280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2070400280 is an abundant number, since it is smaller than the sum of its proper divisors (2946340120).

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

2070400280 is a wasteful number, since it uses less digits than its factorization.

2070400280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981563 (or 3981559 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2070400280 is about 45501.6513986031. The cubic root of 2070400280 is about 1274.5340406766.

Adding to 2070400280 its reverse (820040702), we get a palindrome (2890440982).

The spelling of 2070400280 in words is "two billion, seventy million, four hundred thousand, two hundred eighty".