1354997280 has 384 divisors, whose sum is σ = 5343141888. Its totient is φ = 281014272.

The previous prime is 1354997279. The next prime is 1354997309. The reversal of 1354997280 is 827994531.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2926329 + ... + 2926791.

It is an arithmetic number, because the mean of its divisors is an integer number (13914432).

Almost surely, 2^1354997280 is an apocalyptic number.

1354997280 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 1354997280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2671570944).

1354997280 is an abundant number, since it is smaller than the sum of its proper divisors (3988144608).

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

1354997280 is a wasteful number, since it uses less digits than its factorization.

1354997280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 1354997280 is about 36810.2876924373. The cubic root of 1354997280 is about 1106.5714842090.

The spelling of 1354997280 in words is "one billion, three hundred fifty-four million, nine hundred ninety-seven thousand, two hundred eighty".