1354680020 has 48 divisors (see below), whose sum is σ = 3028950288. Its totient is φ = 507156480.

The previous prime is 1354680017. The next prime is 1354680029. The reversal of 1354680020 is 200864531.

It can be written as a sum of positive squares in 8 ways, for example, as 36409156 + 1318270864 = 6034^2 + 36308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354680029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50534 + ... + 72546.

It is an arithmetic number, because the mean of its divisors is an integer number (63103131).

Almost surely, 2^1354680020 is an apocalyptic number.

1354680020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1354680020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514475144).

1354680020 is an abundant number, since it is smaller than the sum of its proper divisors (1674270268).

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

1354680020 is a wasteful number, since it uses less digits than its factorization.

1354680020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22220 (or 22218 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1354680020 is about 36805.9780470510. The cubic root of 1354680020 is about 1106.4851129969.

The spelling of 1354680020 in words is "one billion, three hundred fifty-four million, six hundred eighty thousand, twenty".