1354947090 has 128 divisors (see below), whose sum is σ = 4031451648. Its totient is φ = 284344320.

The previous prime is 1354947079. The next prime is 1354947137. The reversal of 1354947090 is 907494531.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 141742 + ... + 150998.

It is an arithmetic number, because the mean of its divisors is an integer number (31495716).

Almost surely, 2^1354947090 is an apocalyptic number.

1354947090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1354947090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015725824).

1354947090 is an abundant number, since it is smaller than the sum of its proper divisors (2676504558).

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

1354947090 is a wasteful number, since it uses less digits than its factorization.

1354947090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9332.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 1354947090 is about 36809.6059473611. The cubic root of 1354947090 is about 1106.5578213259.

The spelling of 1354947090 in words is "one billion, three hundred fifty-four million, nine hundred forty-seven thousand, ninety".