1954784430 has 48 divisors (see below), whose sum is σ = 5139566640. Its totient is φ = 515416704.

The previous prime is 1954784417. The next prime is 1954784431. The reversal of 1954784430 is 344874591.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954784431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114012 + ... + 130031.

It is an arithmetic number, because the mean of its divisors is an integer number (107074305).

Almost surely, 2^1954784430 is an apocalyptic number.

1954784430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1954784430 is an abundant number, since it is smaller than the sum of its proper divisors (3184782210).

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

1954784430 is a wasteful number, since it uses less digits than its factorization.

1954784430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244145 (or 244142 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 1954784430 is about 44212.9441453518. The cubic root of 1954784430 is about 1250.3539115212.

The spelling of 1954784430 in words is "one billion, nine hundred fifty-four million, seven hundred eighty-four thousand, four hundred thirty".